US2545829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duster
Assignee: FE Myers and Bro Co
•
Filing: 1947-07-12
•
Granted: 1951-03-20
•
Expires: 1967-07-12
Abstract
No abstract record available.
Inventors
- 👤 Warren M Spreng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
A; A01; A01M; A01M9/00; A01M9/0092; Y; Y10; Y10S; Y10S239/00; Y10S239/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581244A
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US1476994A
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US1182118A
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US1394686A
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US1832963A
Cited
US1624321A
Cited
US1750147A
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US2256561A
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US2282828A
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US2310620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |