US1599587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poker mechanism for gas producers
Assignee: WELLMAN SEAVERMORGAN Co
•
Filing: 1920-02-28
•
Granted: 1926-09-14
•
Expires: 1940-02-28
Abstract
No abstract record available.
Inventors
- 👤 John F Rogers
- 👤 Elkins R Young
- 👤 Jr Robert Wetherill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:04
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/20; C10J3/32; C10J3/34
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) | 1929-09-13 | 1930-03-15 | 1930-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-09-13 | 1934-03-15 | 1934-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-09-13 | 1938-03-15 | 1938-09-14 | $7700.00 | Window Closed / Lapsed |