US2964204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article retriever
Assignee: Wald Indusries Inc
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Filing: 1957-11-26
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Granted: 1960-12-13
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Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Rufus W Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:37
CPC Classifications
E; E03; E03B; E03B3/00; E03B3/04; E01; E01F; E01F9/00; E01F9/60; E01F9/70; E01H; E01H1/00
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |