Patent US2572644A successfully refreshed from Google Patents.
US2131024A
Expired / Lapsed
US
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Manufacture of fabric from spun glass
Assignee: THURINGISCHE GLASWOLLINDUSTRIE
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Filing: 1935-10-16
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Granted: 1938-09-27
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Expires: 1955-10-16
Abstract
No abstract record available.
Inventors
- 👤 Cordts Hans Friedrich Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/12; D04H3/002; D04H3/004; D04H3/02; D04H3/04; D04H3/045; D04H3/07; D04H3/073; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249941; Y10T428/28; Y10T442/00; Y10T442/60; Y10T442/681
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) | 1941-09-26 | 1942-03-28 | 1942-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-26 | 1946-03-28 | 1946-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-26 | 1950-03-28 | 1950-09-27 | $7700.00 | Window Closed / Lapsed |