Patent US3378090A successfully refreshed from Google Patents.
US3378090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ham pumping scale
Assignee: JOHN G CHRISTIE
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Filing: 1965-09-27
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Granted: 1968-04-16
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 John G Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:33
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A WEIGHING APPARATUS, COMPRISING: A FRAME; A FLEXIBLE, HOLLOW BAG SUBSTANTIALLY FILLED WITH A LIQUID AND MOUNTED ON SAID FRAME; A RECEPTACLE FOR RECEIVING THE OBJECT TO BE WEIGHED; MEANS SUPPORTING SAID RECEPTACLE ON SAID BAG SO THAT THE WEIGHT OF SAID RECEPTACLE AND ITS CONTENTS ARE SUBSTANTIALLY UNIFORMLY APPLIED TO SAID BAG; AN UPRIGHT TUBE MOUNTED ON SAID FRAME AND CONNECTED TO SAID BAG SO THAT THE LEVEL TO WHICH THE FLUID RISES IN THE TUBE INDICATES THE WEIGHT OF THE OBJECT ON THE RECEPTACLE; A SECOND UPRIGHT TUBE MOUNTED ON THE FRAME ALONGSIDE THE FIRST-MENTIONED TUBE; AND A RESERVOIR FOR HOLDING A SUPPLY OF LIQUID, SAID RESERVOIR BEING CONNECTED TO SAID SECOND TUBE AND MANUALLY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |