CPC B64B1/40
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This CPC category covers "conventional balloons of generally spherical shape where the outer cover serves as gas bag, e.g. traditional hot air balloons."[1][2]
Supersets of this category:[3]
- B PERFORMING OPERATIONS; TRANSPORTING
- B64 AIRCRAFT; AVIATION; COSMONAUTICS
- B64B LIGHTER-THAN AIR AIRCRAFT
- B64B1 Lighter-than-air aircraft
- B64B1/00 Lighter-than-air aircraft
- B64B1/40 Balloons
References
- ↑ B64B1/40 B64B1/40 elements listed at Espacenet
- ↑ B64B1/40 listed at USPTO
- ↑ https://patents.google.com/patent/US152145A
| Enclosing categories | CPC B64B, CPC B64B1/00 |
|---|---|
| Subcategories | |
| Keywords | Balloons, Hot air |
| Start year | |
| End year |
