Patent US3182018A successfully refreshed from Google Patents.
US778591A
Expired / Lapsed
US
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Valve.
Assignee: Individual
•
Filing: 1902-02-03
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Granted: 1904-12-27
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Expires: 1922-02-03
Abstract
No abstract record available.
Inventors
- 👤 Mahlon E Layne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:01
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/061; E21B33/062; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966; Y10T24/44974
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1907-12-27 | 1908-06-27 | 1908-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-27 | 1912-06-27 | 1912-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-27 | 1916-06-27 | 1916-12-27 | $7700.00 | Window Closed / Lapsed |