Patent US2718656A successfully refreshed from Google Patents.
US2718656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window glass cleaner
Assignee: Individual
•
Filing: 1950-03-09
•
Granted: 1955-09-27
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Frank H Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1297694A
Cited
US1383018A
Cited
US1461947A
Cited
US1927186A
Cited
US2238757A
Cited
US2335491A
Cited
US2384458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |