US2187306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial thread and method of producing same
Assignee: RICHARD SCHREIBER GASTELL
•
Filing: 1937-07-28
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Granted: 1940-01-16
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Expires: 1957-07-28
Abstract
No abstract record available.
Inventors
- 👤 Formhals Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/0007; D01D5/0061; D01D5/0076; D02; D02G; D02G3/00; D02G3/22; D02G3/36; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 0
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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) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |