Patent US2836011A successfully refreshed from Google Patents.
US2836011A
Expired / Lapsed
US
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Glass envelope forming and sealing apparatus
Assignee: GTE Sylvania Inc
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Filing: 1956-02-03
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Granted: 1958-05-27
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Expires: 1976-02-03
Abstract
No abstract record available.
Inventors
- 👤 Erwin F Hutchins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:12
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1019457A
Cited
US1695834A
Cited
US1853911A
Cited
US1914205A
Cited
US2020729A
Cited
US2530168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |