US1268648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic safety-valve.
Assignee: FRANK W KIDDER
•
Filing: 1917-06-26
•
Granted: 1918-06-04
•
Expires: 1937-06-26
Abstract
No abstract record available.
Inventors
- 👤 John N Van Meter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:10
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; E03B7/12; Y; Y10; Y10T; Y10T137/00; Y10T137/1189; Y10T137/1353
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) | 1921-06-03 | 1921-12-03 | 1922-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-06-03 | 1925-12-03 | 1926-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-06-03 | 1929-12-03 | 1930-06-04 | $7700.00 | Window Closed / Lapsed |