US3479852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling apparatus for rounding the edges of strip metal
Assignee: Archer Products Inc
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Filing: 1967-04-21
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Granted: 1969-11-25
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Expires: 1987-04-21
Abstract
No abstract record available.
Inventors
- 👤 Lucas J Conrad
- 👤 John R Everhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:56
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/005; B21B; B21B1/00; B21B1/22; B21B1/224; B21B28/00; B21B28/02; B21B28/04; B21B39/00; B21B39/006; B21B45/00; B21B45/02; B21B45/0269; B21B45/0275; B21B45/0287; Y; Y10; Y10T; Y10T29/00; Y10T29/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |