Patent US2522736A successfully refreshed from Google Patents.
Patent US1468386A successfully refreshed from Google Patents.
US1468386A
Expired / Lapsed
US
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Head-lifting detector for golfers
Assignee: Individual
•
Filing: 1922-08-23
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Granted: 1923-09-18
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Expires: 1942-08-23
Abstract
No abstract record available.
Inventors
- 👤 James M Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:53
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/001; A; A63; A63B; A63B69/00; A63B69/36; A63B69/3608; G02C11/00; G02C5/12; G02C5/128; A63B71/00; A63B71/06; A63B71/0619; A63B2071/0655; A63B2220/00; A63B2220/80; A63B2220/803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-09-17 | 1927-03-19 | 1927-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-09-17 | 1931-03-19 | 1931-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-09-17 | 1935-03-19 | 1935-09-18 | $7700.00 | Window Closed / Lapsed |