US2811993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary door and shelf for liquid dispensers
Assignee: Individual
•
Filing: 1956-12-07
•
Granted: 1957-11-05
•
Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 William S Ferdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:37
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/0878; B67D1/0879; B67D2210/00; B67D2210/00028; B67D2210/00031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |