US3391393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controllers
Assignee: Combustion Engineering Inc
•
Filing: 1965-10-11
•
Granted: 1968-07-02
•
Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Howard R Jaquith
- 👤 Stultz Harry
- 👤 John J Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:40
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130091A
Cited
US2163647A
Cited
US2288019A
Cited
US3034033A
Cited
US3036229A
Cited
US3040228A
Cited
US3162777A
Cited
US3138724A
Cited
US3168725A
Cited
US3333121A
Cited
US3324257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |