Patent US2336185A successfully refreshed from Google Patents.
Patent US3507409A successfully refreshed from Google Patents.
US3507409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security apparatus
Assignee: Individual
•
Filing: 1968-04-24
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Granted: 1970-04-21
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Expires: 1988-04-24
Abstract
No abstract record available.
Inventors
- 👤 Aldennis Gordon
- 👤 Virginia Anne Gordon
- 👤 Anna Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:28
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/03; E; E05; E05G; E05G7/00
Claims Analysis
Total Claims: 0
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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) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |