Patent US2858582A successfully refreshed from Google Patents.
US2858582A
Expired / Lapsed
US
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Building material
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1953-12-01
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Granted: 1958-11-04
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Expires: 1973-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:37
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/246; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7045; Y10T403/7075; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US831591A
Cited
US1529304A
Cited
AU2700130A
Cited
US2045312A
Cited
US2114450A
Cited
US2189218A
Cited
US2265244A
Cited
US2328051A
Cited
US2303864A
Cited
GB597327A
Cited
US2450911A
Cited
US2683980A
Cited
US2587985A
Cited
US2438195A
Cited
GB669690A
Cited
US2607711A
Cited
US2637673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |