US2511247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inserting drawstrings within a hemmed material
Assignee: Merrow Machine Co
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Filing: 1949-03-18
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Granted: 1950-06-13
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Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Everett E Champlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:41
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/06; D05B35/062; D05B73/00; D05B73/04; D05B73/12; D05D; D05D2303/00; D05D2303/20; D05D2305/00; D05D2305/02; D05D2305/04; D05D2305/06; D05D2305/08; D05D2305/12; D10; D10B; D10B2501/00; D10B2501/04; D10B2501/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |