US1163329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament for incandescent electric lamps.
Assignee: General Electric Co
•
Filing: 1907-05-31
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Granted: 1915-12-07
•
Expires: 1927-05-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Edison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0222; B23K35/0233; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/308; Y10T29/49; Y10T29/4981; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12431
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) | 1918-12-06 | 1919-06-07 | 1919-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-12-06 | 1923-06-07 | 1923-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-12-06 | 1927-06-07 | 1927-12-07 | $7700.00 | Window Closed / Lapsed |