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Patent US2335642A successfully refreshed from Google Patents.
US2335642A
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Assignee: Chatham Manufacturing Co
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Filing: 1943-01-11
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Granted: 1943-11-30
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Expires: 1963-01-11
Abstract
No abstract record available.
Inventors
- 👤 Albert L Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:50
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/02; A47G9/0207; D; D03; D03D; D03D15/00; D03D15/20; D03D15/233; D10; D10B; D10B2211/00; D10B2211/01; D10B2211/02; D10B2401/00; D10B2401/06; D10B2401/063; D10B2401/14; D10B2503/00; D10B2503/06
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) | 1946-11-29 | 1947-05-31 | 1947-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-29 | 1951-05-31 | 1951-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-29 | 1955-05-31 | 1955-11-30 | $7700.00 | Window Closed / Lapsed |