Patent US2978987A successfully refreshed from Google Patents.
US3013367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of making coreless rolls
Assignee: ST CLAIR SPECIALTY MANUFACTURING Co
•
Filing: 1956-05-03
•
Granted: 1961-12-19
•
Expires: 1976-05-03
Abstract
No abstract record available.
Inventors
- 👤 Sarre Elmer F La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/2276; Y; Y10; Y10S; Y10S242/00; Y10S242/03; Y10T; Y10T83/00; Y10T83/485; Y10T83/494
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2643487A
Cited
US2732063A
Cited
US500115A
Cited
US699419A
Cited
US1150156A
Cited
US1136412A
Cited
US1124114A
Cited
US1269969A
Cited
US2283255A
Cited
US2338132A
Cited
US2580060A
Cited
FR1042640A
Cited
US2774018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |