Patent US2548090A successfully refreshed from Google Patents.
US2548090A
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Connection means for a windshield wiper blade and arm unit
Assignee: Productive Inventions Inc
•
Filing: 1947-09-23
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Granted: 1951-04-10
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Expires: 1967-09-23
Abstract
No abstract record available.
Inventors
- 👤 John W Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:12
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/38; B60S1/3801; B60S1/40; B60S1/4003; B60S1/4038; B60S1/4041; B60S2001/3812; B60S2001/3817; B60S2001/382; B60S2001/3822; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/602
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |