US2189293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonshattering glass
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1928-01-03
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Granted: 1940-02-06
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Expires: 1948-01-03
Abstract
No abstract record available.
Inventors
- 👤 Ostromislensky Iwan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:05
CPC Classifications
C; C09; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/06; C08; C08L; C08L2666/00; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31551; Y10T428/31645
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) | 1943-02-05 | 1943-08-07 | 1944-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-05 | 1947-08-07 | 1948-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-05 | 1951-08-07 | 1952-02-06 | $7700.00 | Window Closed / Lapsed |