US2896108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus employing horizontally elongated carbon arc sources
Assignee: Individual
•
Filing: 1957-01-31
•
Granted: 1959-07-21
•
Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Segal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:02
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/0003; H05B31/0009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US572312A
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US628782A
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US881518A
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US1007151A
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US1032247A
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US1871699A
Cited
US2156360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |