Patent US2590547A successfully refreshed from Google Patents.
US2590547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kolko
Assignee: —
•
Filing: —
•
Granted: 1952-03-25
•
Expires: 1969-03-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:39
CPC Classifications
F; F16; F16H; F16H29/00; F16H29/02; F16H29/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/21; Y10T74/2133; Y10T74/2135; Y10T74/2173; Y10T74/2178
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US132695A
Cited
US220375A
Cited
US312709A
Cited
US697342A
Cited
US1213190A
Cited
GB193645A
Cited
GB386138A
Cited
US2047792A
Cited
US2295337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |