US3238397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical reciprocation apparatus
Assignee: Individual
•
Filing: 1963-01-21
•
Granted: 1966-03-01
•
Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Norman B Maness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN ELECTROMAGNETIC RECIPROCATION APPARATUS COMPRISING: A FIRST PAIR OF DUAL POLE ELECTROMAGNETS, SAID FIRST PAIR OF ELECTROMAGNETS BEING SPACED APART ALONG A COMMON AXIS, EACH ELECTROMAGNET HAVING ITS TWO POLES FACING IN A COMMON DIRECTION, THE TWO POLES OF EACH OF SAID ELECTROMAGNETS CONFRONTING THE TWO POLES OF THE OTHER; AND A SECOND PAIR OF DUAL POLE ELECTROMAGNETS IN THE SPACE BETWEEN SAID FIRST PAIR OF ELECTROMAGNETS, SAID SECOND PAIR OF ELECTROMAGNETS BEING CONCENTRIC, EACH OF SAID SECOND PAIR OF ELECTROMAGNETS HAVING ITS TWO POLE FACING OPPOSITE DIRECTIONS, AND EACH POLE OF SAID SECOND PAIR OF ELECTROMAGNETS BEING ALIGNED WITH A DIFFERENT POLE OF SAID FIRST PAIR OF ELECTROMAGNETS.
Claim 2
Dependent Claim
109 words
AN ELECTROMAGNETIC RECIPROCATION APPARATUS COMPRISING: A FIRST PAIR OF DUAL POLE ELECTROMAGNETS, SAID FIRST PAIR OF ELECTROMAGNETS BEING SPACED APART ALONG A COMMON AXIS, EACH ELECTROMAGNET HAVING ITS TWO POLES FACING IN A COMMON DIRECTION, THE TWO POLES OF EACH OF SAID ELECTROMAGNETS CONFRONTING THE TWO POLES OF THE OTHER; AND A SECOND PAIR OF DUAL POLE ELECTROMAGNETS IN THE SPACE BETWEEN SAID FIRST PAIR OF ELECTROMAGNETS, SAID SECOND PAIR OF ELECTROMAGNETS BEING CONCENTRIC, EACH OF SAID SECOND PAIR OF ELECTROMAGNETS HAVING ITS TWO POLE FACING OPPOSITE DIRECTIONS, AND EACH POLE OF SAID SECOND PAIR OF ELECTROMAGNETS BEING ALIGNED WITH A DIFFERENT POLE OF SAID FIRST PAIR OF ELECTROMAGNETS.
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |