US3320731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air supported mowing machine
Assignee: Individual
•
Filing: 1964-03-11
•
Granted: 1967-05-23
•
Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 John F Cody
- 👤 George W Sites
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/695; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN A MOWING MACHINE OF THE CLASS WHEREIN A HOUSING CARRIES A PRIME MOVER WHICH DRIVES, IN A PREDETERMINED PATH OF TRAVEL, A BLADE WHICH ENGAGES VEGETATION TO BE SEVERED FROM THE GROUND, THE COMBINATION THEREWITH OF MEANS FOR DIRECTING SUFFICIENTLY STRONG SEPARATE STREAMS
Claim 2
Dependent Claim
44 words
IN A MOWING MACHINE OF THE CLASS WHEREIN A HOUSING CARRIES A PRIME MOVER WHICH DRIVES, IN A PREDETERMINED PATH OF TRAVEL, A BLADE WHICH ENGAGES VEGETATION TO BE SEVERED FROM THE GROUND, THE COMBINATION THEREWITH OF MEANS FOR DIRECTING SUFFICIENTLY STRONG SEPARATE STREAMS
References Cited (Backward Citations)
US3110996A
Cited
US3170276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |