US3062337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated curtain wall structure
Assignee: Howe Sound Co
•
Filing: 1958-10-30
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Granted: 1962-11-06
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 John H Zittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:41
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; Y; Y10; Y10T; Y10T428/00; Y10T428/17; Y10T428/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US484413A
Cited
US1988115A
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US2116020A
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US2180317A
Cited
US2585082A
Cited
US2606788A
Cited
US2728702A
Cited
US2696281A
Cited
US2738094A
Cited
US2874652A
Cited
US2912725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |