US3310322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas meter change device
Assignee: Individual
•
Filing: 1964-06-23
•
Granted: 1967-03-21
•
Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 John W Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/18; G01F15/185; Y; Y10; Y10S; Y10S174/00; Y10S174/11; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0413; Y10T137/5762; Y10T137/598; Y10T137/5997
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A GAS METER CHANGING DEVICE HAVING A PAIR OF FLEXIBLE BOOTS EACH PROVIDED WITH OPENINGS AT OPPOSITE ENDS, EACH BEING SEPARABLE ALONG A LONGITUDINAL SEAM, EACH HAVING SEALING MEANS FOR THE LONGITUDINAL SEAM, AND EACH HAVING AN ANNULAR SEALING MEANS AT THE OPENINGS AT THE OPPOSITE ENDS, A BYPASS CONNECTION FROM ONE BOOT TO THE OTHER ADJOINING ONE END THEREOF, A PURGE CONNECTION FROM ONE OF THE BOOTS ADJOINING THE OPPOSITE END THEREOF AND MEANS FOR PINCHING THE BOOTS CLOSED INTERMEDIATE THEIR ENDS.
Claim 2
Dependent Claim
83 words
A GAS METER CHANGING DEVICE HAVING A PAIR OF FLEXIBLE BOOTS EACH PROVIDED WITH OPENINGS AT OPPOSITE ENDS, EACH BEING SEPARABLE ALONG A LONGITUDINAL SEAM, EACH HAVING SEALING MEANS FOR THE LONGITUDINAL SEAM, AND EACH HAVING AN ANNULAR SEALING MEANS AT THE OPENINGS AT THE OPPOSITE ENDS, A BYPASS CONNECTION FROM ONE BOOT TO THE OTHER ADJOINING ONE END THEREOF, A PURGE CONNECTION FROM ONE OF THE BOOTS ADJOINING THE OPPOSITE END THEREOF AND MEANS FOR PINCHING THE BOOTS CLOSED INTERMEDIATE THEIR ENDS.
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |