US2944276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window cleaning device
Assignee: Individual
•
Filing: 1958-06-06
•
Granted: 1960-07-12
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Presser Leiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:45
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/02; A47L1/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US869080A
Cited
US1083342A
Cited
US1232400A
Cited
US1274445A
Cited
US1394052A
Cited
US1369817A
Cited
US1691819A
Cited
US2412850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |