US2712778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvements in and relating to the production of helically wound containers
Assignee: Individual
•
Filing: 1952-05-29
•
Granted: 1955-07-12
•
Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Ernest B Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:42
CPC Classifications
B; B31; B31C; B31C3/00; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4653; Y10T83/4656; Y10T83/4664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2249820A
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US1709369A
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US1698264A
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US2051922A
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US2199708A
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US2623445A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |