US2987281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting bracket for supporting air motors
Assignee: AIRBOATS Inc
•
Filing: 1955-04-01
•
Granted: 1961-06-06
•
Expires: 1975-04-01
Abstract
No abstract record available.
Inventors
- 👤 Rudolph K Schurr
- 👤 Robert L Inman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:45
CPC Classifications
B; B63; B63H; B63H7/00; B63H7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA509596A
Cited
US1180430A
Cited
US1834068A
Cited
US1932785A
Cited
GB436555A
Cited
US2273815A
Cited
US2454972A
Cited
US2630991A
Cited
US2644420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |