Patent US2957085A successfully refreshed from Google Patents.
US2865142A
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US
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Apparatus for surfacing glass sheets
Assignee: Libbey Owens Ford Glass Co
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Filing: 1955-07-14
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Granted: 1958-12-23
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Expires: 1975-07-14
Abstract
No abstract record available.
Inventors
- 👤 Donald W Dunipace
- 👤 John M Byal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:46
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/04; B24B41/047; B24B41/053; B24B7/00; B24B7/20; B24B7/22; B24B7/24; B24B7/242; B24B7/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1430214A
Cited
US1510976A
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US1771408A
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US1767123A
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US1788931A
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US1735565A
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US1811044A
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US1872694A
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US1836542A
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US1982648A
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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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |