Patent US3253174A successfully refreshed from Google Patents.
US3253174A
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US
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Glass for incandescent discharge lamps
Assignee: Corning Glass Works
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Filing: 1962-03-15
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Granted: 1966-05-24
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Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Elmer
- 👤 Martin E Nordberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
C; C03; C03C; C03C23/00; C03C23/0095; B; B23; B23K; B23K11/00; B23K11/24; B23K11/248; C03C3/00; C03C3/04; C03C3/06; C03C4/00; C03C4/08; C03C4/085; G; G02; G02B; G02B5/00; G02B5/20; G02B5/208; G02B5/22; G02B5/226; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; H; H01; H01K; H01K1/00; H01K1/28; H01K1/32; H01K1/325; C03C2201/00; C03C2201/06; C03C2201/30; C03C2201/34; C03C2201/3423; C03C2201/36; C03C2201/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |