US2585365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch and brake for grinding apparatus
Assignee: Univis Lens Co
•
Filing: 1948-03-20
•
Granted: 1952-02-12
•
Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert E Allen
- 👤 William F Utzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:39
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; B; B24; B24B; B24B41/00; F16D59/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US926184A
Cited
US1122206A
Cited
US1538506A
Cited
US1569194A
Cited
US2291629A
Cited
US2432272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |