Patent US2234136A successfully refreshed from Google Patents.
US2234136A
Expired / Lapsed
US
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Trimming strip core and the like
Assignee: Backstay Welt Co
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Filing: 1938-11-10
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Granted: 1941-03-04
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Expires: 1958-11-10
Abstract
No abstract record available.
Inventors
- 👤 Glen G Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:51
CPC Classifications
B; B31; B31C; B31C1/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24223; Y10T428/24355; Y10T428/24446; Y10T428/24455
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) | 1944-03-03 | 1944-09-02 | 1945-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-03 | 1948-09-02 | 1949-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-03 | 1952-09-02 | 1953-03-04 | $7700.00 | Window Closed / Lapsed |