US2345629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossing crystalline polymeric material
Assignee: Dow Chemical Co
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Filing: 1940-12-06
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Granted: 1944-04-04
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Expires: 1960-12-06
Abstract
No abstract record available.
Inventors
- 👤 John H Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/08; B; B44; B44C; B44C1/00; B44C1/24; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/08
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) | 1947-04-04 | 1947-10-04 | 1948-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-04 | 1951-10-04 | 1952-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-04 | 1955-10-04 | 1956-04-04 | $7700.00 | Window Closed / Lapsed |