US2694844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novelty key indicator
Assignee: Individual
•
Filing: 1952-08-18
•
Granted: 1954-11-23
•
Expires: 1972-08-18
Abstract
No abstract record available.
Inventors
- 👤 Nd Henry Grumbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:35
CPC Classifications
G; G09; G09F; G09F3/00; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1379; Y10T24/34; Y10T24/3484; Y10T24/3485; Y10T24/3489; Y10T24/3491; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312105A
Cited
US995260A
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US1219873A
Cited
US1375090A
Cited
US1463020A
Cited
US1909896A
Cited
US2415692A
Cited
US2429494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |