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Patent US3406977A successfully refreshed from Google Patents.
US3406977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable golf tee and sight
Assignee: FRANK J VOELKERDING
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Filing: 1965-12-14
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Granted: 1968-10-22
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Expires: 1985-12-14
Abstract
No abstract record available.
Inventors
- 👤 Frank J Voelkerding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:19
CPC Classifications
A; A63; A63B; A63B57/00; A63B57/10; A63B57/15
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |