US2644974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning pad for windshields
Assignee: Productive Inventions Inc
•
Filing: 1947-07-29
•
Granted: 1953-07-14
•
Expires: 1967-07-29
Abstract
No abstract record available.
Inventors
- 👤 John W Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06; A47L1/15; B; B60; B60S; B60S3/00; B60S3/04; B60S3/045
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |