Patent US3904091A successfully refreshed from Google Patents.
Patent US1102073A successfully refreshed from Google Patents.
US1102073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphophone-record cleaner.
Assignee: Individual
•
Filing: 1911-12-14
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Granted: 1914-06-30
•
Expires: 1931-12-14
Abstract
No abstract record available.
Inventors
- 👤 Walter Guy Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:28
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/58; G11B3/5809; G11B3/5818; G11B3/5827; G11B3/5845; Y; Y10; Y10S; Y10S29/00; Y10S29/097
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) | 1917-06-29 | 1917-12-29 | 1918-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-06-29 | 1921-12-29 | 1922-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-06-29 | 1925-12-29 | 1926-06-30 | $7700.00 | Window Closed / Lapsed |