Patent US3764278A successfully refreshed from Google Patents.
US3764278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire products
Assignee: Individual
•
Filing: 1969-03-19
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Granted: 1973-10-09
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Expires: 1989-03-19
Abstract
Abstract A METAL WIRE, NAIL OR SCREW OR THE LIKE IN WHICH THE PRODUCTS INCLUDE A CORE OF OVERALL CIRCULAR CROSS-SECTION WITH AT LEAST THREE INTEGRALLY CONNECTED SPIRALLY LOCATED RIBS. THE RIBS HAVE A WIDE ROOT AND A CHARACTERISTIC TIP. A SPECIAL REAMETER IS PROVIDED FOR PRODUCING A NOVEL DIE; THE DIE BEING USED FOR DRAWING WIRE THERETHROUGH ACCORDING TO A PROCESS TO PRODUCE THE PRODUCTS.
Inventors
- 👤 I Ivanier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:10
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/02; B; B21; B21C; B21C3/00; B21C3/02; B21C3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12382
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |