Patent US3384368A successfully refreshed from Google Patents.
US3384368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gymnastic horizontal bars
Assignee: Individual
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Filing: 1966-05-13
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Granted: 1968-05-21
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Expires: 1986-05-13
Abstract
No abstract record available.
Inventors
- 👤 Robert M Fenner
- 👤 Donald E Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:23
CPC Classifications
A; A63; A63B; A63B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A GYMNASTIC HORIZONTAL BAR STRUCTURE COMPRISING: (A) TWO UPRIGHT TUBULAR MASTS; (B) A FLEXIBLE EXTENSION TUBE MOUNTED IN AND PROJECTING UPWARDLY FROM EACH OF SAID MASTS, SAID TUBES BEING FREE TO FLEX LATERALLY RELATIVE TO THE AXES OF SAID MASTS; (C) AN ELBOW FITTING PROVIDED WITH A HORIZONTAL BAR SOCKET FIXEDLY MOUNTED ON THE UPPER EXTREMITY OF EACH EXTENSION TUBE; (D) A PERFORMING BAR EXTENDING FROM THE BAR SOCKET OF ONE ELBOW FITTING INTO THE BAR SOCKET OF THE OTHER ELBOW FITTING; (E) MEANS FOR PREVENTING WITHDRAWAL OF SAID PERFORMING BAR FROM THE BAR SOCKETS OF SID ELBOW FITTINGS; AND (F) BRACE MEANS ATTACHED TO AND EXTENDING DOWNWARDLY AND OUTWARDLY FROM ADJACENT THE UPPER EXTREMITIES OF SAID FASTS AND ACTING TO RESIST LATERAL MOVEMENT OF THE UPPER EXTREMITIES OF SAID MASTS, THE UPWARDLY PROJECTING EXTREMITIES OF SAID EXTENSION TUBES BEING FREE TO FLEX LATERALLY RELATIVE TO THE FIXED UPPER EXTREMITIES OF SAID MASTS.
Claim 2
Dependent Claim
153 words
A GYMNASTIC HORIZONTAL BAR STRUCTURE COMPRISING: (A) TWO UPRIGHT TUBULAR MASTS; (B) A FLEXIBLE EXTENSION TUBE MOUNTED IN AND PROJECTING UPWARDLY FROM EACH OF SAID MASTS, SAID TUBES BEING FREE TO FLEX LATERALLY RELATIVE TO THE AXES OF SAID MASTS; (C) AN ELBOW FITTING PROVIDED WITH A HORIZONTAL BAR SOCKET FIXEDLY MOUNTED ON THE UPPER EXTREMITY OF EACH EXTENSION TUBE; (D) A PERFORMING BAR EXTENDING FROM THE BAR SOCKET OF ONE ELBOW FITTING INTO THE BAR SOCKET OF THE OTHER ELBOW FITTING; (E) MEANS FOR PREVENTING WITHDRAWAL OF SAID PERFORMING BAR FROM THE BAR SOCKETS OF SID ELBOW FITTINGS; AND (F) BRACE MEANS ATTACHED TO AND EXTENDING DOWNWARDLY AND OUTWARDLY FROM ADJACENT THE UPPER EXTREMITIES OF SAID FASTS AND ACTING TO RESIST LATERAL MOVEMENT OF THE UPPER EXTREMITIES OF SAID MASTS, THE UPWARDLY PROJECTING EXTREMITIES OF SAID EXTENSION TUBES BEING FREE TO FLEX LATERALLY RELATIVE TO THE FIXED UPPER EXTREMITIES OF SAID MASTS.
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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |