Patent US3306208A successfully refreshed from Google Patents.
US3306208A
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Universal intervalometer
Assignee: Hamilton Watch Co
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Filing: 1963-09-20
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Granted: 1967-02-28
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 John M Bergey
- 👤 Raymond J Anater
- 👤 John T Roland
- 👤 Bruce G Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:17
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; H03K17/292; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
AN INTERVALOMETER COMPRISING A MAGNETIC CORE MATRIX STEPPER SWITCH FOR GENERATING A SQUIB FIRING SIGNAL FOR EACH STEP OF SAID SWITCH, A PAIR OF DRIVE CORES FOR ALTERNATELY PROVIDING STEPPING IMPULSES TO SAID STEPPER SWITCH, A TRIGGER SWITCH, AND A PLURALITY OF PULSE GENERATORS INCLUDING A SINGLE PULSE GENERATOR, A PULSE PAIR GENERATOR,
Claim 2
Dependent Claim
53 words
AN INTERVALOMETER COMPRISING A MAGNETIC CORE MATRIX STEPPER SWITCH FOR GENERATING A SQUIB FIRING SIGNAL FOR EACH STEP OF SAID SWITCH, A PAIR OF DRIVE CORES FOR ALTERNATELY PROVIDING STEPPING IMPULSES TO SAID STEPPER SWITCH, A TRIGGER SWITCH, AND A PLURALITY OF PULSE GENERATORS INCLUDING A SINGLE PULSE GENERATOR, A PULSE PAIR GENERATOR,
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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) | 1970-02-27 | 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 |