Patent US2982536A successfully refreshed from Google Patents.
US2982536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring
Assignee: Bayer Corp
•
Filing: 1957-11-27
•
Granted: 1961-05-02
•
Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 Kordes Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:35
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911330A
Cited
US2486741A
Cited
US2553635A
Cited
US2639141A
Cited
US2693953A
Cited
US2729618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |