Patent US2594497A successfully refreshed from Google Patents.
US2594497A
Expired / Lapsed
US
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Doffer comb mechanism
Assignee: Individual
•
Filing: 1950-10-30
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Granted: 1952-04-29
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Expires: 1970-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Glen P Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:05
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/46; D01G15/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1720574A
Cited
US1493259A
Cited
US1645794A
Cited
GB377047A
Cited
US1918456A
Cited
US2413340A
Cited
US2459008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |