US3512608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder structure
Assignee: Individual
•
Filing: 1968-05-06
•
Granted: 1970-05-19
•
Expires: 1988-05-06
Abstract
No abstract record available.
Inventors
- 👤 Loren Clifford Huntley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:37
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/38; E06C1/381; B; B63; B63B; B63B27/00; B63B27/14; B63B27/146; E06C7/00; E06C7/08; E06C7/082; E06C7/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206906A
Cited
US1625745A
Cited
US2924291A
Cited
US3078955A
Cited
US3134566A
Cited
US3307654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |