Patent US2371194A successfully refreshed from Google Patents.
Patent US1326728A successfully refreshed from Google Patents.
US1326728A
Expired / Lapsed
US
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Proces of making phonographs-records.
Assignee: Aeolian Co
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Filing: 1915-12-16
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Granted: 1919-12-30
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Expires: 1935-12-16
Abstract
No abstract record available.
Inventors
- 👤 Robert Head
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:21
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1631
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) | 1922-12-29 | 1923-06-30 | 1923-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-12-29 | 1927-06-30 | 1927-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-12-29 | 1931-06-30 | 1931-12-30 | $7700.00 | Window Closed / Lapsed |