US2650414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device
Assignee: Akzo Nobel UK PLC
•
Filing: 1949-06-09
•
Granted: 1953-09-01
•
Expires: 1969-06-09
Abstract
No abstract record available.
Inventors
- 👤 William H Kreamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE314836C
Cited
US680916A
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US1083348A
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US1246683A
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US1302821A
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US1359950A
Cited
US1710686A
Cited
US1671481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |