Patent US1704941A successfully refreshed from Google Patents.
US1704941A
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Assignee: MASSEY CONCRETE PRODUCTS Corp
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Filing: 1926-06-10
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Granted: 1929-03-12
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Expires: 1946-06-10
Abstract
No abstract record available.
Inventors
- 👤 John S Hobson
- 👤 John S Huntoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:02
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/02; E02D29/0216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-03-11 | 1932-09-10 | 1933-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-03-11 | 1936-09-10 | 1937-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-03-11 | 1940-09-10 | 1941-03-12 | $7700.00 | Window Closed / Lapsed |