US3479677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canopy for airplane loading ramp
Assignee: Stanray Corp
•
Filing: 1967-12-21
•
Granted: 1969-11-25
•
Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Walter R Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:39
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/30; B64F1/305
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2581293A
Cited
US2875457A
Cited
US3184772A
Cited
US3121243A
Cited
US3250038A
Cited
US3310823A
Cited
US3363273A
Cited
US3352314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |