US2521691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Registration control device
Assignee: GOSS PRINTING PRESS Co
•
Filing: 1946-11-21
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Granted: 1950-09-12
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Expires: 1966-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert C Corlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:21
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/188; B65H23/1882; B65H23/1886; B65H39/00; B65H39/16; B65H2701/00; B65H2701/10; B65H2701/18; B65H2701/186; B65H2701/1864; Y; Y10; Y10S; Y10S242/00; Y10S242/908
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) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |