Patent US3231270A successfully refreshed from Google Patents.
US3231270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bar bell having collapsible chambers
Assignee: Individual
•
Filing: 1962-07-23
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Granted: 1966-01-25
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Winer Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:48
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/06; A63B21/072; A63B21/075; A63B21/0601; A63B21/0602; A63B2210/00; A63B2210/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A BAR BELL COMPRISING AN ELONGATED BAR, A VARIABLE VOLUME FLUID CHAMBER AT EACH END OF THE BAR, THE BAR EXTENDING CENTRALLY THROUGH EACH FLUID CHAMBER, EACH FLUID CHAMBER HAVING A FIRST FIXED PORTION AND A SECOND COLLAPSIBLE, MOVABLE PORTION THAT IS CONTINUOUSLY MOVABLE ALONG THE BAR FROM A MINIMUM VOLUME POSITION TO A MAXIMUM VOLUME POSITION AND VICE VERSA, AND THE BAR HAVING READILY VISIBLE EXPOSED INDICIA MEANS REGISTERING WITH A POINT ON SAID SECOND MOVABLE PORTION OF EACH FLUID CHAMBER TO INDICATE THE VOLUME OF THE FLUID CHAMBER AT ANY POSITION OF THE SECOND MOVABLE PORTION AND HENCE TO INDICATE THE WEIGHT OF FLUID WITHIN THE FLUID CHAMBER.
Claim 2
Dependent Claim
110 words
A BAR BELL COMPRISING AN ELONGATED BAR, A VARIABLE VOLUME FLUID CHAMBER AT EACH END OF THE BAR, THE BAR EXTENDING CENTRALLY THROUGH EACH FLUID CHAMBER, EACH FLUID CHAMBER HAVING A FIRST FIXED PORTION AND A SECOND COLLAPSIBLE, MOVABLE PORTION THAT IS CONTINUOUSLY MOVABLE ALONG THE BAR FROM A MINIMUM VOLUME POSITION TO A MAXIMUM VOLUME POSITION AND VICE VERSA, AND THE BAR HAVING READILY VISIBLE EXPOSED INDICIA MEANS REGISTERING WITH A POINT ON SAID SECOND MOVABLE PORTION OF EACH FLUID CHAMBER TO INDICATE THE VOLUME OF THE FLUID CHAMBER AT ANY POSITION OF THE SECOND MOVABLE PORTION AND HENCE TO INDICATE THE WEIGHT OF FLUID WITHIN THE FLUID CHAMBER.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |