US2145334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for sealing paperboard blanks
Assignee: EDNA MAY BERGSTEIN
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Filing: 1936-09-10
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Granted: 1939-01-31
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Expires: 1956-09-10
Abstract
No abstract record available.
Inventors
- 👤 Bergstein Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:13
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/60; B31B50/62; B31B50/624; B31B2100/00; B31B2100/002; B31B2100/0022; B31B2120/00; B31B2120/30; B31B50/26; B31B50/58; B31B50/64; B31B50/74; B31B50/741; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051
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) | 1942-01-30 | 1942-08-01 | 1943-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-30 | 1946-08-01 | 1947-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-30 | 1950-08-01 | 1951-01-31 | $7700.00 | Window Closed / Lapsed |