US2812836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window structures
Assignee: ALUMATIC Corp OF AMERICA
•
Filing: 1954-02-26
•
Granted: 1957-11-12
•
Expires: 1974-02-26
Abstract
No abstract record available.
Inventors
- 👤 Zitomer Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:02
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4446; E06B2003/4492; Y; Y10; Y10S; Y10S292/00; Y10S292/20; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997; Y10T403/00; Y10T403/46; Y10T403/4602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1654293A
Cited
US1879655A
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US2359756A
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US2446144A
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US2640567A
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US2630891A
Cited
US2664599A
Cited
US2679665A
Cited
US2609222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |