Patent US3709221A successfully refreshed from Google Patents.
Patent US2807410A successfully refreshed from Google Patents.
US2807410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rural mail box signal
Assignee: Individual
•
Filing: 1953-08-21
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Granted: 1957-09-24
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Expires: 1973-08-21
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:47
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/12; A47G29/1209; A47G29/121; A47G2029/12105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US879022A
Cited
US1232616A
Cited
US1244229A
Cited
US1283136A
Cited
US1973020A
Cited
US2573879A
Cited
US2707075A
Cited
US2613031A
Cited
US2609787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |