Patent US3173801A successfully refreshed from Google Patents.
Patent US772215A successfully refreshed from Google Patents.
US772215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing glowers, luminants, and filaments for electric incandescent lamps.
Assignee: Individual
•
Filing: 1903-03-02
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Granted: 1904-10-11
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Expires: 1923-03-02
Abstract
No abstract record available.
Inventors
- 👤 Francis M F Cazin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:01
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/76
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) | 1907-10-11 | 1908-04-11 | 1908-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-10-11 | 1912-04-11 | 1912-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-10-11 | 1916-04-11 | 1916-10-11 | $7700.00 | Window Closed / Lapsed |