Patent US3526918A successfully refreshed from Google Patents.
US3526918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible window washer and wiper
Assignee: Individual
•
Filing: 1968-09-24
•
Granted: 1970-09-08
•
Expires: 1988-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ragnvald G Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:32
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US210953A
Cited
US1840023A
Cited
US2678458A
Cited
US2759210A
Cited
US2658218A
Cited
US2715745A
Cited
US2918689A
Cited
US3229317A
Cited
US3413675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |