Patent US4137903A successfully refreshed from Google Patents.
Patent US2273733A successfully refreshed from Google Patents.
US2273733A
Expired / Lapsed
US
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Seal for double-walled glass units
Assignee: Libbey Owens Ford Glass Co
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Filing: 1940-06-26
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Granted: 1942-02-17
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Expires: 1960-06-26
Abstract
No abstract record available.
Inventors
- 👤 Ormond H Paddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:34
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715; E06B3/663; E06B3/66309; E06B3/66328; E06B2003/6639; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-02-16 | 1945-08-18 | 1946-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-16 | 1949-08-18 | 1950-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-16 | 1953-08-18 | 1954-02-17 | $7700.00 | Window Closed / Lapsed |