Patent US3055043A successfully refreshed from Google Patents.
US3055043A
Expired / Lapsed
US
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Safety door stop
Assignee: Individual
•
Filing: 1960-09-23
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Granted: 1962-09-25
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Expires: 1980-09-23
Abstract
No abstract record available.
Inventors
- 👤 Jr George J Luttner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:02
CPC Classifications
E; E05; E05F; E05F5/00; E05F5/02; E05F5/04; E05F2005/046; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0894; Y10T292/0895; Y10T292/0902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US896242A
Cited
CH152184A
Cited
GB385519A
Cited
US2497611A
Cited
FR1045429A
Cited
US2687548A
Cited
US2726892A
Cited
US2807044A
Cited
US2918318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |