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US1056878A
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US
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Recording apparatus.
Assignee: Westinghouse Electric Corp
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Filing: 1908-04-10
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Granted: 1913-03-25
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Expires: 1928-04-10
Abstract
No abstract record available.
Inventors
- 👤 Louis M Aspinwall
- 👤 Graham Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:19
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/035; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/36; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
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) | 1916-03-24 | 1916-09-23 | 1917-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-03-24 | 1920-09-23 | 1921-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-03-24 | 1924-09-23 | 1925-03-25 | $7700.00 | Window Closed / Lapsed |