US2995936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed-control device
Assignee: Individual
•
Filing: 1956-10-17
•
Granted: 1961-08-15
•
Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 Heinzmann Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
G; G05; G05D; G05D13/00; G05D13/08; G05D13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1098956A
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US1442885A
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US2025347A
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FR772052A
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US2117248A
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FR881390A
Cited
US2358894A
Cited
FR896594A
Cited
US2514394A
Cited
US2503946A
Cited
US2641464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |