US3086218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-piece tank ball
Assignee: Individual
•
Filing: 1961-08-16
•
Granted: 1963-04-23
•
Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Stanley B Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:10
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US895741A
Cited
US895742A
Cited
US2436035A
Cited
US2579012A
Cited
US2639438A
Cited
US2693600A
Cited
US2820968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |