US3138386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divot preventing golf club head
Assignee: Individual
•
Filing: 1961-08-24
•
Granted: 1964-06-23
•
Expires: 1981-08-24
Abstract
No abstract record available.
Inventors
- 👤 Onions John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0433; A63B53/047; A63B60/00; A63B53/0458
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A GOLF CLUB HEAD COMPRISING A SUBSSTANTIALLY FLAT SURFACE CONSTITUTING A STRIKING FACE, A REAR FACE, A HEEL, AND A TOE, A LOWER EDGE TO SAID SSTRIKING FACE, A DOWNWARDLY FACING SURFACE EXTENDING REARWARDLY FROM SAID REAR FACE AND COMPRISING A GROUND ENGAGING SURFACE BEHIND AND SPACED FROM THE LOWER EDGE OF THE STRIKING FACE, AND A GROOVE IN SAID DOWNWARDLY FACING SURFACE PARALLEL TO AND IMMEDIATELY BEHIND SAID LOWER EDGE OF THE STRIKING FACE.
Claim 2
Dependent Claim
75 words
A GOLF CLUB HEAD COMPRISING A SUBSSTANTIALLY FLAT SURFACE CONSTITUTING A STRIKING FACE, A REAR FACE, A HEEL, AND A TOE, A LOWER EDGE TO SAID SSTRIKING FACE, A DOWNWARDLY FACING SURFACE EXTENDING REARWARDLY FROM SAID REAR FACE AND COMPRISING A GROUND ENGAGING SURFACE BEHIND AND SPACED FROM THE LOWER EDGE OF THE STRIKING FACE, AND A GROOVE IN SAID DOWNWARDLY FACING SURFACE PARALLEL TO AND IMMEDIATELY BEHIND SAID LOWER EDGE OF THE STRIKING FACE.
References Cited (Backward Citations)
GB455632A
Cited
US3079157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |