US2468402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of marking glass
Assignee: Bausch and Lomb Inc
•
Filing: 1945-06-14
•
Granted: 1949-04-26
•
Expires: 1965-06-14
Abstract
No abstract record available.
Inventors
- 👤 Norbert J Kreidl
- 👤 Lewis P Ohliger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/63; C03; C03C; C03C21/00; C03C21/001; C03C21/005; C09K11/0805; C09K11/085; C09K11/67; C09K11/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1217490A
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US1302353A
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US2030440A
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US2340013A
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US2355746A
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US2056809A
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US2245783A
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US2270307A
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US2333329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |