US1606276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the production of incandescent lamps
Assignee: Individual
•
Filing: 1922-10-21
•
Granted: 1926-11-09
•
Expires: 1942-10-21
Abstract
No abstract record available.
Inventors
- 👤 Vello Leopoldo Sanchez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:53
CPC Classifications
H; H01; H01K; H01K3/00; H01K3/16; C; C03; C03B; C03B19/00; C03B19/02; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039
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) | 1929-11-08 | 1930-05-10 | 1930-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-11-08 | 1934-05-10 | 1934-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-11-08 | 1938-05-10 | 1938-11-09 | $7700.00 | Window Closed / Lapsed |