Patent US4305296B1 successfully refreshed from Google Patents.
Patent US2215061A successfully refreshed from Google Patents.
US2215061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating glass fabric
Assignee: EIDP Inc
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Filing: 1937-02-25
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Granted: 1940-09-17
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Expires: 1957-02-25
Abstract
No abstract record available.
Inventors
- 👤 Alt Cornelius Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:31
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2385; Y10T442/2525; Y10T442/2533; Y10T442/259; Y10T442/2631; Y10T442/2672; Y10T442/2721
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) | 1943-09-17 | 1944-03-18 | 1944-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-17 | 1948-03-18 | 1948-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-17 | 1952-03-18 | 1952-09-17 | $7700.00 | Window Closed / Lapsed |