US3409932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus
Assignee: Individual
•
Filing: 1965-05-14
•
Granted: 1968-11-12
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Philip F George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:59
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/50; A47L13/58; A47L13/28; A47L13/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US621269A
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US2577496A
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US1137907A
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GB161854A
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US1946637A
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US2397707A
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US2392208A
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US2441697A
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US2664584A
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US2605492A
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US2655681A
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US2711906A
Cited
US2764774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |