Patent US2548144A successfully refreshed from Google Patents.
US2548144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine attachment
Assignee: PILGRIM CURTAIN CO Inc
•
Filing: 1948-11-10
•
Granted: 1951-04-10
•
Expires: 1968-11-10
Abstract
No abstract record available.
Inventors
- 👤 Cohen Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:08
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/06; D05B35/062; D05B35/08; D05B29/00; D05B29/06; D05D; D05D2303/00; D05D2303/02; D05D2305/00; D05D2305/02; D05D2305/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US279257A
Cited
US1800409A
Cited
US1966519A
Cited
US1985106A
Cited
US2086013A
Cited
US2162591A
Cited
US2277720A
Cited
US2277722A
Cited
US2352660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |