US2644204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood wall structure
Assignee: JOHN C F MERRIFIELD
•
Filing: 1950-06-26
•
Granted: 1953-07-07
•
Expires: 1970-06-26
Abstract
No abstract record available.
Inventors
- 👤 Davis Harry Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/701; E04B2/703; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US271308A
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US508751A
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US890436A
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US1691803A
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US2000897A
Cited
CH184216A
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US2116900A
Cited
US2130788A
Cited
US2115270A
Cited
US2152694A
Cited
US2191933A
Cited
US2261640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |