US3339259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball construction for ball valves
Assignee: Individual
•
Filing: 1964-08-21
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Granted: 1967-09-05
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Expires: 1984-08-21
Abstract
No abstract record available.
Inventors
- 👤 Alvin L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/02; B21D51/08; F; F16; F16K; F16K5/00; F16K5/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49712; Y10T29/49714
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |