US2440138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced corner seam for utility bags
Assignee: Individual
•
Filing: 1945-11-13
•
Granted: 1948-04-20
•
Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Benenfeld Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:31
CPC Classifications
A; A45; A45C; A45C13/00; A45C13/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1145949A
Cited
GB158755A
Cited
US1430267A
Cited
US1999424A
Cited
US2150620A
Cited
US2269574A
Cited
US2290007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |