US2299668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge device for ash receptacles
Assignee: Individual
•
Filing: 1939-05-24
•
Granted: 1942-10-20
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Expires: 1959-05-24
Abstract
No abstract record available.
Inventors
- 👤 Robert A Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:22
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/08; B60N3/083; B60N3/086; B61; B61D; B61D35/00; B64; B64D; B64D11/00; B64D13/00; B64D13/06; B64D2013/0603; B64D2013/0692
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) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |