US3496401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass envelopes for iodine cycle incandescent lamps
Assignee: Corning Glass Works
•
Filing: 1965-12-30
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Granted: 1970-02-17
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 William H Dumbaugh Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:24
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/089; C03C3/091; H01K1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2961328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |