Patent US3286508A successfully refreshed from Google Patents.
US3286508A
Expired / Lapsed
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Signal apparatus
Assignee: Whirlpool Corp
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Filing: 1964-02-21
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Granted: 1966-11-22
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Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Spiegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:05
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; D; D06; D06F; D06F58/00; D06F58/20; D06F58/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
SIGNAL APPARATUS, COMPRISING: A LIGHT SOURCE; MEANS FOR TRANSMITTING LIGHT FROM SAID SOURCE IN A BEAM OF FINITE TRANSVERSE DIMENSIONS; MEANS FOR PROVIDING A PLACE OF VISUAL OBSERVATION OF SAID BEAM; TRANSPARENT COLORED MEANS PROGRESSIVELY MOVABLE FROM EXTERIORLY OF SAID BEAM TO INTERCEPT SAID BEAM IN SAID TRANSVERSE DIMENSIONS AND THUS COLOR THE BEAM PROGRESSIVELY FOR SAID VISUAL OBSERVATION AT SAID PLACE; VARIABLE PRESSURE MEANS; AND MEANS OPERATED BY SAID VARIABLE PRESSURE MEANS FOR THUSLY MOVING SAID COLORED MEANS PROGRESSIVELY WITH INCREASING
Claim 2
Dependent Claim
82 words
SIGNAL APPARATUS, COMPRISING: A LIGHT SOURCE; MEANS FOR TRANSMITTING LIGHT FROM SAID SOURCE IN A BEAM OF FINITE TRANSVERSE DIMENSIONS; MEANS FOR PROVIDING A PLACE OF VISUAL OBSERVATION OF SAID BEAM; TRANSPARENT COLORED MEANS PROGRESSIVELY MOVABLE FROM EXTERIORLY OF SAID BEAM TO INTERCEPT SAID BEAM IN SAID TRANSVERSE DIMENSIONS AND THUS COLOR THE BEAM PROGRESSIVELY FOR SAID VISUAL OBSERVATION AT SAID PLACE; VARIABLE PRESSURE MEANS; AND MEANS OPERATED BY SAID VARIABLE PRESSURE MEANS FOR THUSLY MOVING SAID COLORED MEANS PROGRESSIVELY WITH INCREASING
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |