US2903025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid flow control apparatus
Assignee: Liquid Controls Corp
•
Filing: 1957-04-03
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Granted: 1959-09-08
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Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 George B Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:00
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; G05D7/0126; Y; Y10; Y10T; Y10T137/00; Y10T137/7287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |