Patent DE2087C successfully refreshed from Google Patents.
Patent US3069743A successfully refreshed from Google Patents.
US3069743A
Expired / Lapsed
US
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Concrete form tie
Assignee: Individual
•
Filing: 1960-07-01
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Granted: 1962-12-25
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Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 William J Luyben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:59
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; E04G2017/0646; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49632; Y10T29/49789; Y10T29/4979
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1708634A
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US1978963A
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US2245559A
Cited
US2618039A
Cited
US2501412A
Cited
US2709292A
Cited
US2775018A
Cited
US2773294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |