US2963742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film tube guide
Assignee: Dow Chemical Co
•
Filing: 1957-03-18
•
Granted: 1960-12-13
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Harold G Ahlich
- 👤 James L Amos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/001; B29C48/0018; B29C48/0019; B29C48/09; B29C48/10; Y; Y10; Y10S; Y10S264/00; Y10S264/28; Y10T; Y10T137/00; Y10T137/5762; Y10T137/5907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US871524A
Cited
US1814468A
Cited
US2369484A
Cited
US2480851A
Cited
US2641022A
Cited
US2832294A
Cited
FR1134102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |