US2879830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pole climbing safety device and seat
Assignee: Individual
•
Filing: 1957-12-03
•
Granted: 1959-03-31
•
Expires: 1977-12-03
Abstract
No abstract record available.
Inventors
- 👤 John M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:33
CPC Classifications
A; A63; A63B; A63B27/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1721516A
Cited
US531815A
Cited
FR368920A
Cited
US882850A
Cited
US857203A
Cited
US908781A
Cited
US983875A
Cited
US1153583A
Cited
US1915715A
Cited
US1801158A
Cited
US2254179A
Cited
US2601589A
Cited
GB729566A
Cited
US2775489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |