US2982300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: Robertshaw Controls Co
•
Filing: 1957-08-19
•
Granted: 1961-05-02
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Wilbur F Jackson
- 👤 John W Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0668; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; G05D16/20; G05D16/2086; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7754; Y10T137/7756; Y10T137/7757; Y10T137/7781; Y10T137/7782; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/8593; Y10T137/87917; Y10T137/88022; Y10T137/8803
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1197860A
Cited
US1692421A
Cited
US2010872A
Cited
US2147850A
Cited
US2237784A
Cited
US2212762A
Cited
US2372537A
Cited
US2668396A
Cited
US2721570A
Cited
US2757683A
Cited
US2842146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |