US3430652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittently operable fluid ballast mechanism
Assignee: CLIF MOCK COMPANY 5808 SCHROEDER LANE HOUSTON TX A CORP OF TX
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Filing: 1966-08-04
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Granted: 1969-03-04
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Expires: 1986-08-04
Abstract
No abstract record available.
Inventors
- 👤 Charles R Struck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:39
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B21/00; F15B21/02; F15B21/12; F15B2211/00; F15B2211/20; F15B2211/21; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/42; F15B2211/421; F15B2211/455; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/515; F15B2211/5151; F15B2211/60; F15B2211/625; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1218567A
Cited
US1796941A
Cited
US2804055A
Cited
US3236256A
Cited
US3216328A
Cited
US3345915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |