US3412439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing concrete articles from pallets and inverting said articles
Assignee: American Concrete Crosstie Corp
•
Filing: 1967-02-27
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Granted: 1968-11-26
•
Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:58
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/04; B28B13/06; Y; Y10; Y10S; Y10S425/00; Y10S425/118
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131474A
Cited
US2431618A
Cited
US2554118A
Cited
FR1062188A
Cited
US3181213A
Cited
US3142106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |