US2771268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housed motorized pulley
Assignee: Individual
•
Filing: 1954-07-12
•
Granted: 1956-11-20
•
Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Roger D Rosewall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:54
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/06; D; D06; D06F; D06F53/00; D06F53/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1537702A
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US1468916A
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US1990163A
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US2047420A
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US2133910A
Cited
US2365886A
Cited
US2351060A
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US2379858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |