Patent US2857632A successfully refreshed from Google Patents.
US2857632A
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US
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Method of making panels
Assignee: SEMICO Inc
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Filing: 1954-03-12
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Granted: 1958-10-28
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Milo F Gonser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/10; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/1093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US187502A
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US304531A
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US471944A
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US1375402A
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US1660480A
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US1779325A
Cited
CH179990A
Cited
US2295248A
Cited
US2629139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |