US3530506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sugar cane goggles
Assignee: C & D ACQUISITION CORP A CORP OF DE
•
Filing: 1968-01-12
•
Granted: 1970-09-29
•
Expires: 1988-01-12
Abstract
No abstract record available.
Inventors
- 👤 George R Hoffmaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:58
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427438A
Cited
US1799064A
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US2391349A
Cited
US2706815A
Cited
US2770807A
Cited
US2864088A
Cited
US3036310A
Cited
US3106715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |