Patent US2081423A successfully refreshed from Google Patents.
Patent US3069170A successfully refreshed from Google Patents.
US3069170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Practice ball
Assignee: Dow Chemical Co
•
Filing: 1959-02-04
•
Granted: 1962-12-18
•
Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Dillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:39
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0003; A63B37/005; A63B37/0051; A63B37/006; A63B37/0066; A63B37/007; A63B37/0072; A63B37/0073; A63B37/0077; A63B37/008; A63B43/00; A63B2043/001; Y; Y10; Y10S; Y10S264/00; Y10S264/83; Y10S273/00; Y10S273/04; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T29/49996
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2753599A
Cited
US1021520A
Cited
US1602725A
Cited
US1981959A
Cited
GB524063A
Cited
US2525965A
Cited
US2525966A
Cited
US2670528A
Cited
US2743931A
Cited
GB753259A
Cited
GB783324A
Cited
US2948664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |