US2940716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold bracket structure
Assignee: Individual
•
Filing: 1957-12-09
•
Granted: 1960-06-14
•
Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 Harlan Campbell Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:56
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/20; E04G5/00; E04G5/06; E04G5/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US419379A
Cited
US762540A
Cited
US1104996A
Cited
US1970439A
Cited
US2142651A
Cited
US2340487A
Cited
GB635051A
Cited
US2670248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |