US3492384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of moulding materials
Assignee: 4D Research and Development Co Ltd
•
Filing: 1965-07-01
•
Granted: 1970-01-27
•
Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey Matthews
- 👤 David E Matthews
- 👤 Stanley Norman Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:10
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/36; B28B7/364; B28B7/0029; B28B7/0035; B28B7/0044; B28B7/06; B28B7/08; B28B7/10; B28B7/12; B28B7/368
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932692A
Cited
US937620A
Cited
US2655710A
Cited
US2629135A
Cited
US3231647A
Cited
US3237357A
Cited
US3295278A
Cited
US3269886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |