Patent US2729450A successfully refreshed from Google Patents.
US2729450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled moisture content bowling pins
Assignee: AMF Inc
•
Filing: 1953-07-30
•
Granted: 1956-01-03
•
Expires: 1973-07-30
Abstract
No abstract record available.
Inventors
- 👤 Wentworth B Clapham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:55
CPC Classifications
A; A63; A63D; A63D9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US531103A
Cited
US1121189A
Cited
US1481971A
Cited
US2080066A
Cited
US2064113A
Cited
US2120368A
Cited
US2270603A
Cited
US2246411A
Cited
US2483418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |