US2750648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie rod system for molds for concrete columns, walls, and the like
Assignee: Individual
•
Filing: 1953-06-16
•
Granted: 1956-06-19
•
Expires: 1973-06-16
Abstract
No abstract record available.
Inventors
- 👤 Edward C Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:54
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0728; E04G17/0742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US840998A
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US871390A
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US880201A
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US1374227A
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DE419733C
Cited
US1756632A
Cited
US2034638A
Cited
GB438840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |