US2442279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic thread
Assignee: Individual
•
Filing: 1945-06-26
•
Granted: 1948-05-25
•
Expires: 1965-06-26
Abstract
No abstract record available.
Inventors
- 👤 Sterling W Alderfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:36
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/14; B; B29; B29D; B29D99/00; B29D99/0078; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/40; D02G3/404; D02G3/406; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/731; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2973
Claims Analysis
Total Claims: 0
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US2328844A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |