US3543331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for moulding gramophone records
Assignee: EMI Ltd
•
Filing: 1967-06-16
•
Granted: 1970-12-01
•
Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Walter Leslie Rand
- 👤 Colin James Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:10
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29L; B29L2017/00; B29L2017/001; B29L2017/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US941291A
Cited
US1573769A
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US1436941A
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US1576642A
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GB306265A
Cited
DE651725C
Cited
US2524858A
Cited
US2839306A
Cited
FR1059447A
Cited
US3186029A
Cited
US3397425A
Cited
US3298059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |