US1567693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning machine
Assignee: ALLEN ENGINEERING AND MANUFACTURING Co
•
Filing: 1923-10-02
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Granted: 1925-12-29
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Expires: 1943-10-02
Abstract
No abstract record available.
Inventors
- 👤 George L Allen
- 👤 Richard C Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
D; D06; D06G; D06G1/00; Y; Y10; Y10S; Y10S29/00; Y10S29/078
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) | 1928-12-28 | 1929-06-29 | 1929-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-28 | 1933-06-29 | 1933-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-28 | 1937-06-29 | 1937-12-29 | $7700.00 | Window Closed / Lapsed |