US3503283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Heald Machine Co
•
Filing: 1968-03-04
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Granted: 1970-03-31
•
Expires: 1988-03-04
Abstract
No abstract record available.
Inventors
- 👤 Alden H Jacobson
- 👤 Albert L Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:16
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; Y; Y10; Y10T; Y10T408/00; Y10T408/91; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T82/00; Y10T82/25; Y10T82/2566
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) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |