US2797136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disappearing ash receptacle
Assignee: Individual
•
Filing: 1953-10-14
•
Granted: 1957-06-25
•
Expires: 1973-10-14
Abstract
No abstract record available.
Inventors
- 👤 Nels H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:50
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/08; B60N3/083; Y; Y10; Y10S; Y10S220/00; Y10S220/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1286297A
Cited
US1695346A
Cited
US1719925A
Cited
GB331530A
Cited
FR703138A
Cited
US2323045A
Cited
US2443381A
Cited
AT165725B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |