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US2999258A
Expired / Lapsed
US
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Surface-cleaning and rug-shampooing machines
Assignee: Individual
•
Filing: 1958-10-24
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Granted: 1961-09-12
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Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 Berberian Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:39
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4088; A47L11/29; A47L11/30; A47L11/302; A47L11/305; A47L11/32; A47L11/325; A47L11/4036; A47L11/4038; A47L11/4044; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4077
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |