US2330832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Perfex Corp
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Filing: 1941-05-12
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Granted: 1943-10-05
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Expires: 1961-05-12
Abstract
No abstract record available.
Inventors
- 👤 Homer E Malone
- 👤 Arthur F Geisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:25
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H15/00; F24H15/30; F24H15/355; F24H15/36; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/193; G05D23/1931; G05D23/275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-10-04 | 1947-04-05 | 1947-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-04 | 1951-04-05 | 1951-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-04 | 1955-04-05 | 1955-10-05 | $7700.00 | Window Closed / Lapsed |