US3097875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for electrically operated lifters
Assignee: Cullen Friestedt Co
•
Filing: 1959-03-02
•
Granted: 1963-07-16
•
Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Louis G Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:16
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/28; B66C1/30; B66C1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908251A
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US1079345A
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US1245264A
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US1545433A
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US1555020A
Cited
US1750892A
Cited
US1817797A
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US2275074A
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US2841434A
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US2985481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |