US2507659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Index and reinforcing member
Assignee: Individual
•
Filing: 1943-10-07
•
Granted: 1950-05-16
•
Expires: 1963-10-07
Abstract
No abstract record available.
Inventors
- 👤 Zalkind Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:11
CPC Classifications
B; B42; B42F; B42F19/00; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1471; Y10T428/24; Y10T428/2419; Y10T428/24215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US891505A
Cited
US1199418A
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US1220402A
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US1346101A
Cited
US1326370A
Cited
US1472887A
Cited
US1612267A
Cited
US1687859A
Cited
US1961079A
Cited
US1949271A
Cited
US2139377A
Cited
US2292272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |