Patent US398530A successfully refreshed from Google Patents.
Patent US2116571A successfully refreshed from Google Patents.
US2116571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag manufacture
Assignee: SHELLMAR PRODUCTS Co
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Filing: 1936-05-15
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Granted: 1938-05-10
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Expires: 1956-05-15
Abstract
No abstract record available.
Inventors
- 👤 Gurwick Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/62; B31B2155/00; B31B2155/001; B31B2155/0012; B31B2160/00; B31B2160/10; B31B2160/20; B31B70/008; B31B70/74; B31B70/81; B31B70/812; B31B70/8123
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) | 1941-05-09 | 1941-11-08 | 1942-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-09 | 1945-11-08 | 1946-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-09 | 1949-11-08 | 1950-05-10 | $7700.00 | Window Closed / Lapsed |