US2588635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-05-19
•
Granted: 1952-03-11
•
Expires: 1967-05-19
Abstract
No abstract record available.
Inventors
- 👤 Newton R Junkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:04
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/02; G09F7/08; G09F7/10; G09F3/00; G09F3/08; G09F3/18; G09F3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1943168A
Cited
US2122910A
Cited
US2173942A
Cited
US2238990A
Cited
US2340421A
Cited
US2317192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |