US3495800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form and bracket for casting a stack of uniform concrete slabs
Assignee: Individual
•
Filing: 1969-04-17
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Granted: 1970-02-17
•
Expires: 1989-04-17
Abstract
No abstract record available.
Inventors
- 👤 Donald J Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:25
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/38; B; B28; B28B; B28B7/00; B28B7/0088; E04B; E04B1/00; E04B1/35; E04B1/3505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |