US1272313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc-lamp.
Assignee: Individual
•
Filing: 1917-02-03
•
Granted: 1918-07-09
•
Expires: 1937-02-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin Stanton Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:22
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/10; H05B7/103; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-07-08 | 1922-01-07 | 1922-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-07-08 | 1926-01-07 | 1926-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-07-08 | 1930-01-07 | 1930-07-09 | $7700.00 | Window Closed / Lapsed |