US3389665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorway void filler
Assignee: Down River International Inc
•
Filing: 1966-07-06
•
Granted: 1968-06-25
•
Expires: 1986-07-06
Abstract
No abstract record available.
Inventors
- 👤 Robert J Kauffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:41
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/004; B65D90/0053; B61; B61D; B61D45/00; B61D45/008; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US405025A
Cited
US1423303A
Cited
GB625036A
Cited
US2871936A
Cited
US2823745A
Cited
US2932262A
Cited
US2990923A
Cited
US3296059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |