US2719335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum clearer for drawing frames
Assignee: Individual
•
Filing: 1953-03-16
•
Granted: 1955-10-04
•
Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 Iii Andrew E Buchanan
- 👤 Dick R Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:25
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/60; D01H5/62; D01H5/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908341A
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FR393494A
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US927668A
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FR574912A
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FR658780A
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US2077283A
Cited
US2289753A
Cited
FR877609A
Cited
US2425576A
Cited
GB652311A
Cited
BE497625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |