US3316451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intervalometer
Assignee: Individual
•
Filing: 1964-12-07
•
Granted: 1967-04-25
•
Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert L Silberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351; F; F41; F41A; F41A19/00; F41A19/58; F41A19/64; F41A19/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN IMPROVED INTERVALOMETER COMPRISING THE COMBINATION OF A MULTIVIBRATOR, MEANS FOR ENERGIZING SAID MULTIVIBRATOR TO GENERATE A PLURALITY OF SPACED PULSES AT ITS OUTPUT, A MULTISTAGE STEPPING CIRCUIT, MEANS FOR APPLYING THE PULSE GENERATED AT THE OUTPUT OF SAID MULTIVIBRATOR TO SAID STEPPING CIRCUIT FOR CAUSING SAID STAGES TO BE ACTIVATED IN SUCCESSION TO THEREBY PROVIDE A PLURALITY OF SUCCESSIVE EVENT INITIATING SIGNALS, GATE MEANS ADAPTED TO BE CONNECTED IN CIRCUIT WITH SAID MULTIVIBRATOR FOR LIMITING THE OUTPUT OF THE LATTER TO A SINGLE PULSE SUCH THAT ONLY ONE STAGE OF THE STEPPING CIRCUIT IS ACTIVATED TO PROVIDE A SINGLE EVENT INITIATING SIGNAL, AND SELECTIVELY OPERABLE SWITCHING MEANS IN CIRCUIT WITH SAID GATE MEANS FOR CONNECTING SAID GATE MEANS TO SAID MULTIVIBRATOR TO PERMIT ONLY A SINGLE PULSE OUTPUT THEREFROM OR FOR DISCONNECTING SAID GATE MEANS FROM SAID MULTIVIBRATOR TO PERMIT A PLURALITY OF SPACED PULSES AT THE OUTPUT THEREOF.
Claim 2
Dependent Claim
150 words
AN IMPROVED INTERVALOMETER COMPRISING THE COMBINATION OF A MULTIVIBRATOR, MEANS FOR ENERGIZING SAID MULTIVIBRATOR TO GENERATE A PLURALITY OF SPACED PULSES AT ITS OUTPUT, A MULTISTAGE STEPPING CIRCUIT, MEANS FOR APPLYING THE PULSE GENERATED AT THE OUTPUT OF SAID MULTIVIBRATOR TO SAID STEPPING CIRCUIT FOR CAUSING SAID STAGES TO BE ACTIVATED IN SUCCESSION TO THEREBY PROVIDE A PLURALITY OF SUCCESSIVE EVENT INITIATING SIGNALS, GATE MEANS ADAPTED TO BE CONNECTED IN CIRCUIT WITH SAID MULTIVIBRATOR FOR LIMITING THE OUTPUT OF THE LATTER TO A SINGLE PULSE SUCH THAT ONLY ONE STAGE OF THE STEPPING CIRCUIT IS ACTIVATED TO PROVIDE A SINGLE EVENT INITIATING SIGNAL, AND SELECTIVELY OPERABLE SWITCHING MEANS IN CIRCUIT WITH SAID GATE MEANS FOR CONNECTING SAID GATE MEANS TO SAID MULTIVIBRATOR TO PERMIT ONLY A SINGLE PULSE OUTPUT THEREFROM OR FOR DISCONNECTING SAID GATE MEANS FROM SAID MULTIVIBRATOR TO PERMIT A PLURALITY OF SPACED PULSES AT THE OUTPUT THEREOF.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |