Patent US2071661A successfully refreshed from Google Patents.
US3212436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sub floating drifting mine
Assignee: Individual
•
Filing: 1952-07-10
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Granted: 1965-10-19
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Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Michelson Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:06
CPC Classifications
F; F42; F42B; F42B22/00; F42B22/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS FOR EQUILIBRATING A SUBFLOATING MINE COMPRISING, IN COMBINATION, A MINE CASE, A VOLUME INCREASING DIAPHRAGM MOUNTED IN THE WALL OF SAID CASE, A VOLUME REDUCING DIAPHRAGM MOUNTED IN THE WALL OF SAID CASE, PRESSURE RESPONSIVE MEANS ALTERNATELY CONNECTED TO SAID VOLUME INCREASING MEANS AND SAID VOLUME DECREASING MEANS FOR ACTIVATION THEREOF WHEREBY THE VOLUME OF SAID MINE IS INCREASED OR DECREASED TO CAUSE THE MINE TO RISE OR SINK SELECTIVELY IN THE WATER, AN ANCHOR FOR SAID MINE, ELECTROLYTE MEANS FOR SECURING SAID ANCHOR TO SAID MINE, SAID SECURING MEANS RELEASING BY ELECTROLYSIS SAID ANCHOR FROM SAID MINE A PREDETERMINED PERIOD OF TIME AFTER LAUNCHING THEREOF, MEANS ENGAGING SAID ANCHOR FOR PREVENTING OPERATION OF SAID VOLUME INCREASING MEANS AND SAID VOLUME DECREASING MEANS UNTIL SAID ANCHOR IS RELEASED.
Claim 2
Dependent Claim
129 words
APPARATUS FOR EQUILIBRATING A SUBFLOATING MINE COMPRISING, IN COMBINATION, A MINE CASE, A VOLUME INCREASING DIAPHRAGM MOUNTED IN THE WALL OF SAID CASE, A VOLUME REDUCING DIAPHRAGM MOUNTED IN THE WALL OF SAID CASE, PRESSURE RESPONSIVE MEANS ALTERNATELY CONNECTED TO SAID VOLUME INCREASING MEANS AND SAID VOLUME DECREASING MEANS FOR ACTIVATION THEREOF WHEREBY THE VOLUME OF SAID MINE IS INCREASED OR DECREASED TO CAUSE THE MINE TO RISE OR SINK SELECTIVELY IN THE WATER, AN ANCHOR FOR SAID MINE, ELECTROLYTE MEANS FOR SECURING SAID ANCHOR TO SAID MINE, SAID SECURING MEANS RELEASING BY ELECTROLYSIS SAID ANCHOR FROM SAID MINE A PREDETERMINED PERIOD OF TIME AFTER LAUNCHING THEREOF, MEANS ENGAGING SAID ANCHOR FOR PREVENTING OPERATION OF SAID VOLUME INCREASING MEANS AND SAID VOLUME DECREASING MEANS UNTIL SAID ANCHOR IS RELEASED.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |