US2510440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and silencer unit
Assignee: Vokes Ltd
•
Filing: 1946-10-25
•
Granted: 1950-06-06
•
Expires: 1966-10-25
Abstract
No abstract record available.
Inventors
- 👤 Vokes Cecil Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:36
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/14; F01; F01N; F01N3/00; F02M35/02; F02M35/024; F02M35/02475; F02M35/02483; F02M35/12; F02M35/1255; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US926070A
Cited
US1702804A
Cited
GB391180A
Cited
GB367009A
Cited
US2020581A
Cited
US2170902A
Cited
US2085702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |