Patent US1841969A successfully refreshed from Google Patents.
Patent EP0116002A1 successfully refreshed from Google Patents.
Patent US1257072A successfully refreshed from Google Patents.
Patent FR496117A successfully refreshed from Google Patents.
Patent JPH0331094A successfully refreshed from Google Patents.
Patent US1754274A successfully refreshed from Google Patents.
US1754274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool end
Assignee: Clarcor Inc
•
Filing: 1927-09-03
•
Granted: 1930-04-15
•
Expires: 1947-09-03
Abstract
No abstract record available.
Inventors
- 👤 John H Kjellstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:58
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/37; B65H2701/377; B65H2701/50; B65H2701/51; B65H2701/515; B65H2701/5152; B65H2701/51524
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1933-04-14 | 1933-10-14 | 1934-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-04-14 | 1937-10-14 | 1938-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-04-14 | 1941-10-14 | 1942-04-15 | $7700.00 | Window Closed / Lapsed |