US2597182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfacing glass sheets or plates
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1949-03-31
•
Granted: 1952-05-20
•
Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 George E Rickner
- 👤 Oscar F Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:39
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/14; B24D13/147; B24B; 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)
US538803A
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US1373532A
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US1231307A
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FR511098A
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US2023275A
Cited
US2000240A
Cited
US1996369A
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US2309819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |