US2758722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1953-09-08
•
Granted: 1956-08-14
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Murray Ernest Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:19
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/06; B; B01; B01D; B01D33/00; B01D33/06; B01D33/11; B01D33/44; B01D33/46; B01D33/466; B01D33/80; B01D33/801; B01D33/804; B01D33/807; B01D2201/00; B01D2201/28; B01D2201/287
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |