US2869356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control joint for building blocks
Assignee: Carter Waters Corp
•
Filing: 1955-08-23
•
Granted: 1959-01-20
•
Expires: 1975-08-23
Abstract
No abstract record available.
Inventors
- 👤 George W Kulhavy
- 👤 Richard L Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:52
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US874881A
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US2031684A
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US2073130A
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US2228052A
Cited
US2300181A
Cited
GB579710A
Cited
US2695513A
Cited
US2680370A
Cited
US2759403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |