US2873070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double opening waterline thermostat
Assignee: Dole Valve Co
•
Filing: 1954-12-20
•
Granted: 1959-02-10
•
Expires: 1974-12-20
Abstract
No abstract record available.
Inventors
- 👤 Harold B Drapeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:11
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/022; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US39772A
Cited
US908138A
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FR591449A
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US1784061A
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US2174042A
Cited
US2356958A
Cited
US2353577A
Cited
US2770443A
Cited
US2650028A
Cited
US2709065A
Cited
US2702052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |