US3493010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for fluid dispensing system
Assignee: H AND H THERMOSTATS Inc
•
Filing: 1967-10-25
•
Granted: 1970-02-03
•
Expires: 1987-10-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Dreibelbis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:50
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/7722; Y10T137/7781; Y10T137/7782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2868223A
Cited
US3003519A
Cited
US3089510A
Cited
US3166500A
Cited
US3241806A
Cited
US3244398A
Cited
US3279495A
Cited
US3297298A
Cited
US3395890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |