US2662196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentrated arc lamp
Assignee: Western Union Telegraph Co
•
Filing: 1948-11-04
•
Granted: 1953-12-08
•
Expires: 1968-11-04
Abstract
No abstract record available.
Inventors
- 👤 William D Buckingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:01
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/10; H01J61/106; B; B23; B23K; B23K35/00; B23K35/02; B23K35/0205; H01J61/98; Y; Y10; Y10S; Y10S315/00; Y10S315/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1596747A
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US1747225A
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US1925701A
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US1814851A
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US2251046A
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US1914762A
Cited
US2031927A
Cited
US2246131A
Cited
US2249672A
Cited
US2367579A
Cited
US2453118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |