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Patent US2673574A successfully refreshed from Google Patents.
US2673574A
Expired / Lapsed
US
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Tool for making invisible seams
Assignee: Individual
•
Filing: 1948-11-20
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Granted: 1954-03-30
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Expires: 1968-11-20
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb Bertha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:30
CPC Classifications
A; A41; A41D; A41D27/00; A41D27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2226449A
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US2042403A
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US2411118A
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US2432914A
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US2461542A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |