Patent US2629971A successfully refreshed from Google Patents.
US2629971A
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US
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Method of forming glass seals between tubular members
Assignee: Individual
•
Filing: 1945-09-14
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Granted: 1953-03-03
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Expires: 1965-09-14
Abstract
No abstract record available.
Inventors
- 👤 Milton D Hare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:04
CPC Classifications
C; C03; C03C; C03C29/00; H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511914A
Cited
US1680738A
Cited
US2313025A
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US2290050A
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US2315292A
Cited
US2292863A
Cited
US2509906A
Cited
US2374269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |