Patent US1930995A successfully refreshed from Google Patents.
US1930995A
Expired / Lapsed
US
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Method of manufacturing celluloid tubing
Assignee: Nixon Nitration Works
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Filing: 1931-12-16
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Granted: 1933-10-17
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Expires: 1951-12-16
Abstract
No abstract record available.
Inventors
- 👤 Cecil J Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
B; B31; B31C; B31C1/00; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/745; B31B50/75
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) | 1936-10-16 | 1937-04-17 | 1937-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-16 | 1941-04-17 | 1941-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-16 | 1945-04-17 | 1945-10-17 | $7700.00 | Window Closed / Lapsed |