US3449782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grip handle chuck
Assignee: Marco Products Co
•
Filing: 1967-09-15
•
Granted: 1969-06-17
•
Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Robert G Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; E03F9/005; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2769191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |