US2675677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control apparatus
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
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Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:30
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B11/072; F15B11/0725; F15B2211/00; F15B2211/20; F15B2211/21; F15B2211/216; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/40576; F15B2211/40584; F15B2211/41; F15B2211/411; F15B2211/413; F15B2211/42; F15B2211/421; F15B2211/423; F15B2211/455; F15B2211/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |