Patent US2106740A successfully refreshed from Google Patents.
US2106740A
Expired / Lapsed
US
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Paper-bag machine attachment
Assignee: Thomas M Royal & Co
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Filing: 1935-03-25
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Granted: 1938-02-01
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Expires: 1955-03-25
Abstract
No abstract record available.
Inventors
- 👤 William C Hepke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:43
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/80; B29C66/82; B29C66/822; B29C66/8226; B29C66/83; B29C66/834; B29C66/8351; B29C66/83531; B29C66/83533; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/642; B31B70/649
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) | 1941-01-31 | 1941-08-02 | 1942-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-31 | 1945-08-02 | 1946-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-31 | 1949-08-02 | 1950-02-01 | $7700.00 | Window Closed / Lapsed |