Patent US2887891A successfully refreshed from Google Patents.
US2887891A
Expired / Lapsed
US
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Multi-unit drive pulley
Assignee: Individual
•
Filing: 1957-01-18
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Granted: 1959-05-26
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Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 Perez Alicia Fernandez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:21
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/10; F16B39/108; F16B39/22; F16B39/24; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0847; F16B2200/00; F16B2200/69; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/983; Y10S474/00; Y10S474/902; Y10S474/903; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |