US3389923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint connection
Assignee: Haveg Industries Inc
•
Filing: 1967-11-08
•
Granted: 1968-06-25
•
Expires: 1987-11-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William D Love
- 👤 Marcus J Billings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/088; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA695250A
Cited
US1587079A
Cited
US2147353A
Cited
US2744769A
Cited
US3193309A
Cited
US3272538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |