US3408437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding thermoplastic printing plates
Assignee: Union Carbide Corp
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Filing: 1967-10-23
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Granted: 1968-10-29
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Expires: 1987-10-23
Abstract
No abstract record available.
Inventors
- 👤 Iii John B Wheeler
- 👤 Sonia John
- 👤 Samuels Herbert
- 👤 James G Kirkis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:57
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C33/00; B29C33/38; B29C33/3842; B29C33/3857; B29C33/40; B29C43/00; B29C43/003; B29C43/02; B29C43/021; B41; B41C; B41C3/00; B41C3/06; B29K; B29K2071/00; B29L; B29L2031/00; B29L2031/757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |