US2879936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic fluid apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1955-12-16
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Granted: 1959-03-31
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Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Harold F Faught
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:11
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/04; F01D21/045; F02; F02C; F02C7/00; F02C7/04; F02C7/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL39729C
Cited
US1679519A
Cited
GB307762A
Cited
GB461600A
Cited
GB518145A
Cited
US2494328A
Cited
GB619722A
Cited
US2720356A
Cited
US2802618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |