Patent US2667691A successfully refreshed from Google Patents.
US2667691A
Expired / Lapsed
US
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Glass cutting machine
Assignee: Individual
•
Filing: 1951-09-07
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Granted: 1954-02-02
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Expires: 1971-09-07
Abstract
No abstract record available.
Inventors
- 👤 Marton Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:05
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; C03B33/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US453867A
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US662924A
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US1115333A
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US1100878A
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US1885099A
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US2174183A
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US2357206A
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US2528901A
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US2460842A
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US2534775A
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US2531149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |