US2064514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making safety glass
Assignee: DUPLATE Corp
•
Filing: 1933-08-03
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Granted: 1936-12-15
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Expires: 1953-08-03
Abstract
No abstract record available.
Inventors
- 👤 Emil H Balz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/22; B29C39/42; B29C33/00; B29C33/02; B29C39/02; B29C39/12; B29C39/123; B29C39/126; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10899; B32B17/10908; B32B17/10917; B29L; B29L2031/00; B29L2031/778; B29L2031/7782; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/023; Y10S425/06
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) | 1939-12-15 | 1940-06-15 | 1940-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-15 | 1944-06-15 | 1944-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-15 | 1948-06-15 | 1948-12-15 | $7700.00 | Window Closed / Lapsed |