Patent US3494507A successfully refreshed from Google Patents.
US3494507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering apparatus
Assignee: Individual
•
Filing: 1966-07-05
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Granted: 1970-02-10
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Ricciardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
G; G01; G01G; G01G11/00; G01G11/08; G01G11/083; G01G11/003; G01G11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100315A
Cited
US2276383A
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US2662665A
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US2619256A
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US2618406A
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US2932430A
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US3062408A
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US3162325A
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US3139216A
Cited
US3253744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |