US2787046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling process and apparatus
Assignee: Individual
•
Filing: 1951-10-20
•
Granted: 1957-04-02
•
Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 James B Wagstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
B; B21; B21B; B21B13/00; B21B13/18; B21B13/20; F; F21; F21V; F21V3/00; F21V3/04; F21V3/10; F21V3/12; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1110000A
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US1252146A
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US2095733A
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US2062875A
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US2147868A
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US2277740A
Cited
US2288184A
Cited
GB609706A
Cited
US2367715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |