US2954446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mat type floor switch
Assignee: Individual
•
Filing: 1957-11-26
•
Granted: 1960-09-27
•
Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Lance A Wikkerink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/14; H01H3/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1161193A
Cited
US2165227A
Cited
US2059928A
Cited
US2625621A
Cited
US2611049A
Cited
US2796488A
Cited
US2783327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |