US2973991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device
Assignee: HT Golde GmbH
•
Filing: 1958-12-10
•
Granted: 1961-03-07
•
Expires: 1978-12-10
Abstract
No abstract record available.
Inventors
- 👤 Werner Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
B; B60; B60J; B60J7/00; B60J7/02; B60J7/04; B60J7/057; B60J7/0573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1589108A
Cited
US2549332A
Cited
US2496785A
Cited
US2704226A
Cited
US2772917A
Cited
DE1012834B
Cited
US2866446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |