US2444314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making phonograph pressing matrices
Assignee: RCA Corp
•
Filing: 1944-05-27
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Granted: 1948-06-29
•
Expires: 1964-05-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest P Ruggieri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:22
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29L; B29L2017/00; B29L2017/001; B29L2017/003; Y; Y10; Y10S; Y10S425/00; Y10S425/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US843483A
Cited
US1378573A
Cited
AU1780929A
Cited
US2092880A
Cited
US2341398A
Cited
US2280981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |