US2932844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric wall and ceiling washer
Assignee: Individual
•
Filing: 1958-08-22
•
Granted: 1960-04-19
•
Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Robert J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:09
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/38; A47L11/4013; A47L11/4016; A47L11/4022; A47L11/4036; A47L11/4041; A47L11/408; A47L11/4083; A47L11/4088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1644859A
Cited
US1383018A
Cited
US1661480A
Cited
US1938068A
Cited
US2292435A
Cited
US2857606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |