US1249293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-controlled valve mechanism.
Assignee: H & M Automatic Regulator Co
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Filing: 1911-12-11
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Granted: 1917-12-04
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Expires: 1931-12-11
Abstract
No abstract record available.
Inventors
- 👤 Harry Y Norwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
E; E03; E03D; E03D3/00; E03D3/02; E03D3/04; F; F16; F16K; F16K1/00; F16K1/30; F16K1/304; F16K1/306; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86477; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T74/00; Y10T74/11; Y10T74/114; Y10T74/116
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) | 1920-12-03 | 1921-06-04 | 1921-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-03 | 1925-06-04 | 1925-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-03 | 1929-06-04 | 1929-12-04 | $7700.00 | Window Closed / Lapsed |