Patent US3306358A successfully refreshed from Google Patents.
US3306358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pitless well adapter
Assignee: Individual
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Filing: 1964-08-26
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Granted: 1967-02-28
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Expires: 1984-08-26
Abstract
No abstract record available.
Inventors
- 👤 Clifford C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:54
CPC Classifications
E; E03; E03B; E03B5/00; E03B5/04; E03B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A WELL A WELL CASING HAVING AN OPENING SPACED BELOW ITS UPPER END, A CONDUIT IN SAID CASING CONNECTED TO A PUMP, A DELIVERY LINE ADJACENT TO SAID CASING OPENING, A TWO-PART ADAPTER INCLUDING A HANGER UNIT AND A SUPPORTED UNIT, SAID HANGER UNIT INCLUDING A PART SPANNING SAID CASING OPENING AND A PART DEFINING A PASSAGE AND CONNECTED TO SAID DELIVERY LINE, SAID HANGER UNIT COOPERATING WITH SAID WELL CASING TO DEFINE A CHAMBER SURROUNDING SAID PASSAGE-DEFINING PART, AND MEANS PROVIDING A SEALED SUPPORTING CONNECTION BETWEEN SAID HANGER UNIT AND SAID SUPPORTED UNIT, SAID SUPPORTED UNIT SUPPORTING SAID CONDUIT AND HAVING A PASSAGE COMMUNICATING AT ONE END WITH THE PASSAGE OF SAID HANGER UNIT AND AT ITS OPPOSITE END WITH SAID CONDUIT, SAID PASSAGE DEFINING PART OF SAID HANGER UNIT HAVING AN APERTURE COMMUNICATING WITH SAID CHAMBER.
Claim 2
Dependent Claim
139 words
IN A WELL A WELL CASING HAVING AN OPENING SPACED BELOW ITS UPPER END, A CONDUIT IN SAID CASING CONNECTED TO A PUMP, A DELIVERY LINE ADJACENT TO SAID CASING OPENING, A TWO-PART ADAPTER INCLUDING A HANGER UNIT AND A SUPPORTED UNIT, SAID HANGER UNIT INCLUDING A PART SPANNING SAID CASING OPENING AND A PART DEFINING A PASSAGE AND CONNECTED TO SAID DELIVERY LINE, SAID HANGER UNIT COOPERATING WITH SAID WELL CASING TO DEFINE A CHAMBER SURROUNDING SAID PASSAGE-DEFINING PART, AND MEANS PROVIDING A SEALED SUPPORTING CONNECTION BETWEEN SAID HANGER UNIT AND SAID SUPPORTED UNIT, SAID SUPPORTED UNIT SUPPORTING SAID CONDUIT AND HAVING A PASSAGE COMMUNICATING AT ONE END WITH THE PASSAGE OF SAID HANGER UNIT AND AT ITS OPPOSITE END WITH SAID CONDUIT, SAID PASSAGE DEFINING PART OF SAID HANGER UNIT HAVING AN APERTURE COMMUNICATING WITH SAID 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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |