US2840091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-sagging loading dock canopy frame
Assignee: Individual
•
Filing: 1952-07-16
•
Granted: 1958-06-24
•
Expires: 1972-07-16
Abstract
No abstract record available.
Inventors
- 👤 Azzo Errol P D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:24
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US204187A
Cited
US289174A
Cited
US549565A
Cited
US1109038A
Cited
US1092496A
Cited
US1736250A
Cited
US1841278A
Cited
US2294835A
Cited
US2486170A
Cited
US2560466A
Cited
US2567995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |