US3043395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanized ladder device
Assignee: Individual
•
Filing: 1961-06-02
•
Granted: 1962-07-10
•
Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 Ellis W Volkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:25
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2571180A
Cited
US2627560A
Cited
US2672377A
Cited
US2643515A
Cited
US2954092A
Cited
US2970667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |