US3385398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension ladders
Assignee: Individual
•
Filing: 1966-05-03
•
Granted: 1968-05-28
•
Expires: 1986-05-03
Abstract
No abstract record available.
Inventors
- 👤 Edward V Garnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:54
CPC Classifications
E; E06; E06C; E06C5/00; E06C5/02; E06C5/04; E06C5/06; B; B66; B66F; B66F11/00; B66F11/04; B66F11/044; B66F11/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US489628A
Cited
US1035570A
Cited
US677282A
Cited
US1761726A
Cited
US2238665A
Cited
US2777737A
Cited
US2936848A
Cited
US2982373A
Cited
US3078949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |