US1199847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure-regulator.
Assignee: Individual
•
Filing: 1915-02-15
•
Granted: 1916-10-03
•
Expires: 1935-02-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:52
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0616; G05D16/0619; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796
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) | 1919-10-03 | 1920-04-03 | 1920-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-03 | 1924-04-03 | 1924-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-03 | 1928-04-03 | 1928-10-03 | $7700.00 | Window Closed / Lapsed |