US2762659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible scaffold
Assignee: Individual
•
Filing: 1953-03-16
•
Granted: 1956-09-11
•
Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 Harlan Campbell Allen
- 👤 John M Harlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:38
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/18; E04G1/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US294860A
Cited
US1667547A
Cited
US1360131A
Cited
US2198071A
Cited
US2429675A
Cited
US2588959A
Cited
US2569653A
Cited
US2565777A
Cited
US2645538A
Cited
US2649261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |